b:head_first_statistics:using_statistical_sampling
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b:head_first_statistics:using_statistical_sampling [2019/11/20 01:37] – [How to design a sample] hkimscil | b:head_first_statistics:using_statistical_sampling [2022/11/04 10:40] (current) – hkimscil | ||
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====== Using Statistical Sampling ====== | ====== Using Statistical Sampling ====== | ||
+ | < | ||
+ | rnorm(16, 110, 10) | ||
+ | </ | ||
+ | |||
{{tablelayout? | {{tablelayout? | ||
|{{: | |{{: | ||
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===== How to design a sample ===== | ===== How to design a sample ===== | ||
Define your target [[: | Define your target [[: | ||
- | Define your sampling units | + | Define your [[:sampling units]] |
- | Define your [[:sampling# | + | * 책, 단원, 문단, 단어 |
+ | * 개인 (individuals) vs. 지역단위, | ||
+ | * 지역단위 범죄율 . . . . 외국인이 많이 사는 곳 . . . . 범죄율이 높을 경우 --> [[: | ||
+ | * [[: | ||
+ | * [[:Unit of analysis]] 참조 | ||
+ | Define your [[:Sampling# | ||
If you don’t design your sample well, your sample may not be accurate. | If you don’t design your sample well, your sample may not be accurate. | ||
- | sa [[: | + | See [[: |
+ | |||
+ | |||
===== Sometimes samples can be biased ===== | ===== Sometimes samples can be biased ===== | ||
+ | {{: | ||
+ | |||
+ | <WRAP info 60%> | ||
+ | __Poorly designed questions__ | ||
+ | |||
+ | * Leading question: How great is our hard-working customer service team? | ||
+ | * Fixed: How would you describe your experience with the customer service team? | ||
+ | |||
+ | * 유도질문: | ||
+ | * 정상질문: | ||
+ | |||
+ | * 단정질문: | ||
+ | * 맥주를 먹는다는 것을 단정하고 질문을 만들었다. | ||
+ | |||
+ | * 이중장전질문: | ||
+ | |||
+ | * Double Negative: 사용하신 물건이 깨끗하지 않지 않았나요? | ||
+ | * 나는 온라인으로는 드물게 물건을 안산다. | ||
+ | </ | ||
+ | |||
+ | |||
+ | ===== How to choose your sample(, then) ===== | ||
+ | see [[: | ||
- | {{tablelayout? | ||
- | ^ header 1 ^ header 2 ^ | ||
- | | cell A1 | cell B1 | | ||
- | | cell A2 | cell B2 | | ||
- | | cell A3 | cell B3 | |
b/head_first_statistics/using_statistical_sampling.1574181473.txt.gz · Last modified: 2019/11/20 01:37 by hkimscil